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Service bulletin TIB-E-086

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10055897
Published by NHTSA2014-08-05
Manufacturer's numberTIB-E-086
Manufacturer's date2014-05-27
NHTSA componentELECTRICAL SYSTEM:SOFTWARE

NHTSA's summary

KENWORTH: SOFTWARE NEEDS UPDATING FOR LATEST VERSION OF PARAMETERS THAT IS NEEDED AND AFTER CHANGES ARE MADE, DOWNLOAD BECOMES AVAILABLE BEFORE RETRIEVING NEW SOFTWARE ON DAVIE4. *PE

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Electrical system, Software

Vehicles listed
KENWORTH KENWORTH

Listing a model year does not mean every vehicle of it is concerned: the document says which.